<template>
	<div class="list" ref="wrapper">
		<div>
			<div class="area">
				<div class="title border-topbottom">当前城市</div>
				<div class="button-list">
					<div class="button-wrapper">
						<div class="button">{{this.currentCity}}</div>
					</div>
				</div>
			</div>
			<div class="area">
				<div class="title border-topbottom">热门城市</div>
				<div class="button-list">
					<div class="button-wrapper" 
						v-for="item of hot"
						@click="handleCityClick(item.name)">
						<div class="button">{{item.name}}</div>
					</div>
					
				</div>
			</div>
			<div class="area" 
				v-for="(item,key) of cities"
				:key="key"
				:ref="key"
			>
				<div class="title border-topbottom">{{key}}</div>
				<ul class="item-list">
					<li class="item" 
						v-for="itemName of item" 
						:key="itemName.id"
						@click="handleCityClick(itemName.name)"
					>{{itemName.name}}</li>
				</ul>
					
			</div>
		</div>
	</div>
</template>

<script>
import { mapState,mapMutations } from 'vuex'
import Bscroll from 'better-scroll'
export default {
	name: 'CityList',
	props: {
		hot: Array,
		cities: Object,
		letter: String
	},
	computed: {
		...mapState ({
			currentCity: 'city'
		})
	},
	methods: {
		handleCityClick (city) {
			// this.$store.commit('changeCity', city)
			this.changeCity(city)
			this.$router.push('/')
		},
		...mapMutations (['changeCity'])
	},
	activated () {
		this.scroll = new Bscroll(this.$refs.wrapper)
		// this.scroll = new Bscroll(this.$refs['wrapper'])
	},
	watch : {
		letter () {
			const element = this.$refs[this.letter][0]
			this.scroll.scrollToElement(element) 
		}
	}

}
</script>

<style lang="stylus" scoped>
	@import '~styles/varibles.styl'
	.border-topbottom
		&:before
			border-color: #ccc
		&:after
			border-color: #ccc
	// .border-bottom
	// 	&:before
	// 		border-color: #ccc
	.list
		position: absolute
		top: 1.58rem
		left: 0
		right: 0
		bottom: 0
		overflow: hidden
		.title
			font-size: .26rem
			line-height: .44rem
			padding-left: .2rem
			color: #666
			background: #eee
		.button-list
			overflow: hidden
			padding: .1rem .6rem .1rem .1rem
			.button-wrapper
				float: left
				width: 33.33%
				.button
					margin: .1rem
					padding: .1rem 0
					text-align: center
					border: .02rem solid #ccc
					border-radius: .06rem
		.item-list
			.item
				line-height: .76rem
				padding-left: .2rem
				border-bottom: .02rem solid #ccc
</style>